Siemens SINAMICS G150 Operating Instructions Manual page 523

Danger to life when incorrectly using the basic brake control
Accidents causing serious injury or death can occur if the basic brake control is incorrectly
used.
• Do not use the basic brake control as service brake.
• Carefully observe the special technological and machine-specific conditions and
• Take into account the risks that can result, e.g. from suspended axes.
Features
● Automatic activation by means of sequence control
● Standstill (zero-speed) monitoring
● Forced brake release (p0855, p1215)
● Application of brake for a 1 signal "Unconditionally close holding brake" (p0858)
● Application of brake after "Enable speed controller" signal has been canceled (p0856)
Signal connections
The holding brake is controlled using free digital outputs on the Control Unit or the TM31 (for
option G60). If necessary, control must be realized by means of a relay to connect a holding
brake with higher voltage or with higher power demand.
For this, parameter p1215 must be set to "3" (motor holding brake the same as sequence
control, connection via BICO) and the appropriate BICO parameters of the selected digital
outputs must be interconnected.
Commissioning
If p1215 is set to "0" (no brake available) during initial commissioning and a connected brake
is recognized, simple brake control is activated automatically (p1215 = 1). In this case, fault
F07935 "Motor holding brake detected" appears and must be acknowledged.
NOTICE
Material damage due to a destroyed brake for an incorrectly set configuration
If a motor holding brake is being used, the parameter setting p1215 = "0" (no motor holding
brake available) means that the motor holding brake remains closed. The brake will be
destroyed when the motor moves.
• If there is a motor brake, set parameter p1215 to values > 1.
Converter cabinet units
Operating Instructions, 07/2016, A5E03347396A
WARNING
standards for ensuring personnel and machine safety.
Functions, monitoring, and protective functions
9.2 Drive functions
523